Great efforts have been made to identify and utilize rice germplasms with bakanae resistance. Some resistant varieties have been identified, but they appear to account for a tiny proportion of the rice germplasms. Li et al. (1993) found only one variety with high resistance to bakanae and 12 with moderate resistance from a total of 411 rice accessions. None of the 204 rice accessions analyzed by Zheng et al. (1993) showed high resistance to bakanae and only 2.5% of them had moderate resistance. Similarly, a few accessions were reported to have high resistance to bakanae in other studies